Home / 19,739.88-27,238.41-12,675.87

Finding the Fourth Proportional to 19,739.88, 27,238.41 and 12,675.87

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Solution

The fourth proportional to 19,739.88, 27,238.41 and 12,675.87 is: 17,491.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,739.88 : 27,238.41 = 12,675.87 : x
  2. Step 2: Convert to fraction form
    19,739.88/27,238.41 = 12,675.87/x
  3. Step 3: Cross multiply
    19,739.88x = 27,238.41 × 12,675.87
  4. Step 4: Simplify right side
    19,739.88x = 345,270,544.17
  5. Step 5: Solve for x
    x = 345,270,544.17/19,739.88
  6. Step 6: Final answer
    x = 17,491.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.